Gadgets to Make Your Own Projects: Bluetooth Amplifier Boards

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When It comes to making your own modern speakers, these Bluetooth speaker boards are the way to go. They allow you to amplify audio and because of the board’s Bluetooth capabilities, it can be connected to your phone or any other Bluetooth compatible devices.These boards are compact, loud and are surprisingly high quality for their cheap price.

JohnAudioTech is a YouTube channel that focuses on audio technology, He is a DIY project builder and shows you how to repair things. This channel focuses around electronic projects and DIY gadgets that are cool to make.

Kinter MA-150

  • Palm sized amplifierKinter MA-150 2-Channel Car Audio Mini Amplifier AMP with 5V USB Charger and Tera Cloth for CD DVD MP3
  • USB port for charging external devices
  •  RCA L/R jacks
  • Volume knob
  • Crossover switch.
  • High Level Input & Speaker with Waterproof Connectors
  • Heavy Duty Aluminum Case that cools the unit
  •  RMS 75 WattsX2CH.(at 14.4V DC) Loading in 4 Ohm Speaker output
  • High and Low Pass Filter Switch


  • Wide-range single-supply operation (8 – 26 V)TDA7492 Digital Audio Amplifier Board 2x50W review
  •  High efficiency
  • Four selectable, fixed gain settings
  • Differential inputs minimize common-mode
  •  Standby and mute features
  • Short-circuit protection
  • Thermal overload protection
  •  Externally synchronizable
  • ECOPACK®, environmentally friendly package

lm1875 kit

  • Output Power: Typical 20W (maximum 30W)
  • Total harmonic distortion: <0.04%
  • SNR: 105dB
  • Frequency response: 14Hz-100kHz
  • (RC low-pass circuit considered by the maximum range 3.29Hz-482.29kHz)
    Supply voltage: Recommended ± 25V
  • (maximum voltage can not exceed ± 30V, 18V AC full bridge rectifier is 25V)
    Products without a radiator, you may need to purchase additional radiator
  • TDA7492P 

  • 25 W + 25 W continuous output powerINSMA TDA7492P Chip 25W+25W Wireless Bluetooth 4.0 Audio Receiver Digital Amplifier Board
  •  Wide-range single-supply operation (8 – 26 V)
  •  High efficiency
  •  Four selectable, fixed gain settings
  •  Differential inputs minimize common-mode
  •  Standby and mute features
  •  Short-circuit protection
  •  Thermal overload protection
  •  Externally synchronizable
  •  ECOPACK®, environmentally-friendly package